-12-11r=14-9r

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Solution for -12-11r=14-9r equation: 



-12-11r=14-9r

We move all terms to the left:

-12-11r-(14-9r)=0

We add all the numbers together, and all the variables

-11r-(-9r+14)-12=0

We get rid of parentheses

-11r+9r-14-12=0

We add all the numbers together, and all the variables

-2r-26=0

We move all terms containing r to the left, all other terms to the right

-2r=26

r=26/-2

r=-13

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